Mailbox



FIG. 1 is a perspective view of a mailbox showing my new design, the broken line showing of the flag and lock is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 Is another perspective view thereof, omitting the unclaimed portions of the design;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof, the right side view being a mirror image thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof. 

The ornamental design for a mailbox, as shown and described. 